Bag-house.



A. J. MEIER.

BAG HOUSE APPLIO-ATION FILED MAY 19, 1911.

Patented June 25, 1912.

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WOTNESSES INVENTOH plan sTATEs ALBERT J. MEIER, OF GLENDALE, MISSOURI.

. nae-nousn Specification of Letters Patent.

' Patented June 25, 1e12,

Application filed May 19, 1911. Serial in. 528,341.

To all whom it may concern:

Be it known that I, ALBERT J. MEIER, a citizen of the United States, andresidin at Glendale, in the county of St. Louis an State ofMissouri,.have invented certain new and useful Improvements in Bag-Houses, of which the following is a specification.

This invention relates to bag-houses used in metallurgical practice forsaving the fume and dust by filtration of the fume through bags ofcloth.

- A bag-house as used in metallurgical practice is a building 01:structure divided off by a horizontal partition into a bag chamber and afume inlet and deposit chamber or cellar. The partition is formed with anumber of holes provided with thimbles. The bags are tubes of cotton orwoolen cloth about 18 inches in diameter and from 20 to 30 feet longfThese bags are closed at one end and suspended by their closed ends inthe bag chamberand with their open ends over the holes and tied to thelhimbles in the partition. The gas or fume conducted into the inletchamber and is drawn through the bags by means of an exliaust fanconnected to the bag chamber;

By passing the fiime through the bags, the fume and dust willbedeposited on the interior walls thereof and is periodically removed byshaking the bags, the dust dropping into the deposit chamber or cellarwhere it is ignited and sintered together so that itcan be smelted.While the bags are shaken the damper betwe' the inlet pipe or flue andthe deposit camber must be closed in order that the pressure on theinterior and exterior of the bags will be equalized.

Heretofore the operation of shaking the bags has been entirely manual.The damper was closed and an operator was then required to enter the bagchamber and shake the bags. Since the operator is subjected to thepoisonous gases in the bag chamber, especially Where a lead fume 1streated, 'the operation is not only disagreeable but dangerous as well.On the other hand the manual operation is exceedingly slow and tediousand therefore is done at comparatively long intervals, so that theefliciency of the apparatus is very much reduced on account of theclogging taking. place between successive shaking operations.

fore is to construct a bag-house, and provide operating means forshaking the bags which will not require the operator to enter the bagchamber, and to construct the operating means so that the bags will beshaken intermittently and .at ,eomparatively short intervals.

Another object is to combine with bag shaking means, mechanism forclosing the damper between the inlet chamber and the flue while the bagsare being shaken.

Another object is toconstruct the bag shaking means so that it willoperate to shake the-bags in sections, and to provide means constructedto cut off the fum'e supply from the section which is to be shaken,leaving thefume turned on to the other sections.

Another object is to provide a novel sup porting 'means for the bags topermit easy shaking operation thereof and to permit a row of bags to beshaken as a unit.

Further objects will appear from the detail description taken inconnection with the accompanying drawings in which:

Figure 1 is a plan view partly in section of a bag-house and showingone'embodiment of this invention, and Fig. 2 is a section on the line2-2 Fig. 1,

Only so much of a bag-house is shown as to illustrate and permitexplanation of this invention, since bag-houses are well known to thoseskilled in the art.

Referring to the accompanying drawings, 10 designates one of the wallsof the structure forming the bag-house, and 11 the parspace below thepartition is divided by walls 12, 13, 14, etc., into a number of cellarsB, G, D, E, etc. A gas main or fume flue Gr runs along the ends of thecellars and opens therein by means of damper controlled ports 'orpassages, 12 being the port or passage connecting the cellar B with theflue, but it will be understood that each dollar has its separate dampercontrolled passage or port connecting it with the line.

The partition plate has formed therein rows of holes 15 provided withthimbles 16. The bags 17 are suspended from bars 18, the upper ends ofthese bags being closed and connected to the bars by means of eyes 19,andthe lower open ends of the bags extend One ofthe objects of-thisinvention'there ing over the holes 15 andbeing tie to the thimbles 16.The bags are suspended in rows, each'rowbeing supported by a bar 18,

and these bars being supported by means of springs 20 from beams 21,there being preferably a' .spring opposite each suspension point of abag.

The-bars 18 are provided at one of their ends with rolls 22 adapted tobe engaged by shakingcams 23on an operating shaft 24. This shaft extendsacross the building and is driven at a slow speed and in a clockwisedirection from a suitable motor 25 thrdu h a countershaft 26, a-,wor1nand wheel 27, a d

rod 18 guides I and move the bars 18 lengthwise or laterally in thedirection of their length against the tension of the springs 20supporting them.

I AftGI lBhBSB cams pass the rolls, the bars will .be released and willbe returned with the bags thereon to original position. This releasingmovement Will cause the bars 18 supporting the bags to beshakenlaterally sov as to shake the deposited matter into the cellars. Thecams for the bars of a section are mounted on the shaft 24: in the sameangular relation so that the bars Will. be operated simultaneously toshake the bags of a section simultaneously. The sets of cams foroperating the bags of the difi'erent sections are. however displacedangularly so that the bag sections will be shaken successively. Thus thesections will be shaken successively in the order B, C, D, E, etc.

While the bags of a. section are being. shaken, the damper for thatsection must be closed in order to cut oh? the fume from the cellar ofthat section. Means are therefore provided for automatically closing thedamper of thesection which is to be shaken. Each bag section is providedwith a support 29 for a lever, one arm 30 of, which is arranged to beengaged by a damper cam 31 on the shaft 24, the other arm 30 beingcbnnected with an endless cable 32 passing over suitable pulleys andalso connected" withthe slidlng rod 33 of a damper 34 controlling port'or passage 1). This damper is normally maintained in openpositionbymeans of a weight 35-. Itwill be understood of course that adamper is provided for each passage of a bag section, and that eachsection ls similarly controlled. Asthe shaft' 24 revolves, and while thecams 23 move-the rods 18 of a bag section to the left, the

.cam 31 for thatsection will move the lever and close the damper forthat section, so that the damper will be closed when the rods 18 arereleased to shake the bags. The damper cams'3l of the dill'enentsections are angularly displaced on the shaft 24: so

that the dampers, for the different-sections will be closed successivelyand in the same order as. the bags are shaken by the shaking cams 23.After'. .t he.-bags have been shaken the damper lever will bereleased'by the damper cam aildt-he-weight 35 will return the damper toopen position. It will therefore be seen that mechanical o eratin .b

,clostd and thereafter automatically opened afteifthe bags have beenshaken. .The principal shaking movement is a lateral one, al-

though the movement is a compound lateral and vertical movement, this,compound movement bein permitted bythe method of suspending t e bags'bymeans of springs. After the bags aretreleased by the bag .shak ing cams,the suspended construction permits a free vibratory movement of the rodsupports, and this results in 'a' thorough agitation of the bags and inthe deposit being thoroughly shaken down into the, cellars. Theconstruction results in a simple mechanism which can be'extended'tooperate any number of sections by merely lengthening the operating.shaft 24 and adding partsconnected thereto and operated therefrom. H

By means of this construction the bags can be shaken automatically sothat -it is unnecessary for the operator to enter the bag chamber or thebuilding, whereby he will not hesubjectedto the poisonous gases. This al0 results in efiiciency of filtering,

since th bags are shaken at comparatively short intervalsso that thebags Will always be clear-t.- Each section 'isshut-down for only a verysmallpart of. the time so that the interruption to filtering will beslight.

It is obvious that various changes may be I made 'in the details ofconstruction without departing from this invention, and it istherefore'to be understood that :this invention; is not to be limited tothe specific-construction shown and, described.

Having thus described the invention what i is claimed is: a

1. In an apparatus of the class described, a structure having a bagchamber and a plurality of cellars below said bag chamber and separatedone from the other by trans ve se partitions, a plurality of bagssuspeiided in rows in said bag chamber and opening from said cellars,one section from each cellar, dampers for said cellars, andinterconnected means for closing said dam- "pers in succession "and forshaking the bag sections connected to the cellars which the nected tothe cellars which the dampers control in the same order as sald dampersare In an a and separated one from the other by trans-'1neansfor.\closing said dampers iii successuspended therefrom, andmeans for impartition therein to form a bag chamber, a

plurality of transverse partitions dividing the space below saidperforated partition into a plurality ,of cellars, a plurality of bagssuspended in rows in said bag chamber and ,opening from said cellar, amain flue connected to said cellars, dampers between saidflfiue andcellars, and I interconnected means for closing said dampers insuccession and for shaking the bag sections cpnoperated.

paratus of the class described, a; structure wiring a bag chamber and aplurality of cellars below said bag chambers versepartitions, aplurality of bars movsupported in said bag chamber, a row ing from oneof said cellars, a plurality of rowsof bags opening from each cellar andforming a bag section, and interconnected sion and for shaking .thebagsectibns coni ie cted to the cellars which the dampers control in thesame order as said. dampers are operated. I s,

4. In an apparatus of the class described, the conibinzitionof asupport, a row of bagsparting a movement to said support and the bagsthereon in '2), direction along the row toshake thebags.

In'an apparatus of the class described, ti e'combination of a movablysupported bar,

meansfor moving said bar in the direction its length to shake the bagsthereon.

'In'an apparatus of the class described, theeombination of a support, abag, and a suspending spring connected at its upper end to the supportand at its lower end to the'bgg and-constructed to suspend the bag for:fi'ee lateral and vertical movements.

7. In an apparatus of the class described, the combination of a support,a bar, a pluality of bags suspended from said bar,

springs for suspending said bar connected at their upper ends to;saidsupport and at their lower ends to said bar, and operating means formoving said bar to shake the bags thereon.

8. In an apparatus of the class described, the combination of a bar, aplurality of bags suspended therefrom, means for loosely suspending thebar, and operating means for moving said bar lengthwise to shake thebags thereon.

9. In an apparatus of the class described, the combination of alengthwise movable bar, a plurality of bagssuspended therefrom, and acam adapted to move the bar lengthwise and release the same to shake thebags thereon.

' 10. In an apparatus of the class described, the combination of a bar,a plurality ofbags suspended therefrom, springs for suspending said bar,and a cam adapted to engage the end of the bar and release the same toshake the bags thereon.

. 11. In an apparatus of the class described, the combination of. a bar,a row of of connection of the bags thereto.

12.1nan apparatus of the class described, the combination of a pluralityof suspended bars, bags supported therefrom, a drive shaft extendingacross said bars, and independent connections between said bars andshaft constructed to permit said shaft to move said bars endwise.

13. In an apparatus of the class described, a structure having a bagchamber and a plurality of cellars below said bag chamber, bagssupported in said bag chamber and opening from said cellars, dampers forsaid cellars, a drive shaft extending across said structure, independentcnnnections from said shaii't constructed "to shake said bags insections, and independent connections from said shaft to said dampersadapted to close them individually.

In testimony whereof I aflix my signature in presence of two witnesses.

ALBERT J MEIER. Witnesses:

' Gno. OLIVER CARBENTER,

ARCHER W. RICHARDS.

bags suspended from said bar, and means for loosely suspending said barat the points

